telescopiform
1. This paper indroduces a telescopiform bolt in hole mouth and it under ground test.
介绍了一种孔口可拉伸锚杆及其现场试验情况。
2. Accoording to the result on observation of rock pressure,adaptability of telescopiform bolt in soft rock road and reasonable structural parameter are analysed.
根据矿压观测结果分析了可拉伸锚杆对软岩巷道支护的适应性及其合理的结构参数。